W0507 14:36:19.624060       1 deprecated.go:66] 
==== Removed Flag Warning ======================

logtostderr is removed in the k8s upstream and has no effect any more.

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I0507 14:36:19.624370       1 kube-rbac-proxy.go:233] Valid token audiences: 
I0507 14:36:19.625133       1 kube-rbac-proxy.go:347] Reading certificate files
I0507 14:36:19.625308       1 kube-rbac-proxy.go:395] Starting TCP socket on :8443
I0507 14:36:19.625456       1 kube-rbac-proxy.go:402] Listening securely on :8443
E0507 15:39:42.408868       1 auth.go:47] Unable to authenticate the request due to an error: context canceled
E0507 15:39:52.409470       1 auth.go:47] Unable to authenticate the request due to an error: context canceled
E0507 15:39:56.417392       1 auth.go:47] Unable to authenticate the request due to an error: context canceled